Why all the confusion with security?

Don't these idiots go through ANY training before the festival? After reading about all the problems with metal tent stakes not being allowed in for Weekend 1, I bought some plastic ones. The guy searching my car found them and said,

Then later at the checkpoint into the festival grounds, I was emptying my backpack and the security guy there saw my ballpoint pen. Same thing as the stakes, he says,

"You can't have that"

I looked and couldn't tell what he was talking about. I said, "What the pen?"

"Yeah, you can't take that in. You could stab someone with it."

WHAT? I could stab someone with my car keys, or my sunglasses too!

I just threw it away, I mean it's a pen. But nowhere in the Do's and Dont's does it say no pens. No markers. Of course pens are allowed, my wife had one beside me at the other table and there was no problem there. And then there's stuff on the list like camelbacks and umbrellas that are supposed no-no's that I saw EVERYWHERE. Is it really so hard to enforce simple rules? Christ, an umbrella is more of a weapon than my pen.